GB/T 17789-1999Procedures for simultaneous transmission of data and digitally encoded voice signals over the PSTN or over 2-wire leased point-to-point telephone type circuits (English PDF)
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Issued by
State Quality and Technical Supervision
Level / Type
National · Recommended
Issue date
July 13, 1999
Implementation date
January 1, 2000
Scope
GB/T 17789-1999 (Procedures for simultaneous transmission of data and digitally encoded voice signals over the PSTN or over 2-wire leased point-to-point telephone type circuits) is available as an English-translated PDF.
GB/T 17789-1999 — This standard specifies for the public switched telephone network or wire leased simultaneously transmit digitized voice and data terminals on telephone-type circuits technical requirements.
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Document preview — GB/T 17789-1999
National Standard of the People's Republic of China
- ICS
- 33.040.20
- Classification
- M 19
Issued by: State Quality and Technical Supervision
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard specifies for the public switched telephone network or wire leased simultaneously transmit digitized voice and data terminals on telephone-type circuits technical requirements.
Document data
International classification (ICS): 33.040.20.
Chinese classification (CCS): M19.
Estimated length of the Chinese original: 18,190 words.
Adopted international standard: ITU-T V.70-1996, MOD.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.
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